Knee slide?

[SAMUEL SUGEETH]

I've been having problems with right knee pain(patellar tendonitis) while squating. I want to know if there something like knee slide on incorrect technique I've been doing.

p.s- posted video from side to get better view of the knee

[Pete Troupos]

Hey Sam
We can see knee slide pretty clearly from the prescribed angle. You'll also not want to wear black and squat in a darker room next time. Makes form checks harder.
You do have a bit of knee slide right as you hit depth. You probably also feel yourself shifting to your toes briefly in the bottom. Reach back further with the hips so your back angle is more horizontal and it should help clean it up. The back angle on the way down should look more like it does on the way up here.

[SAMUEL SUGEETH]

thank you very much.